Collar wrench



FIG. 1 is a front view of a collar wrench in accordance with the present design;

FIG. 2 is a back view thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front perspective view thereof showing the collar wrench in a disengaged or resting positon; and

FIG. 7 is a second front perspective view thereof showing the collar wrench in an engaged position.

FIG. 8 is a front perspective view of a second embodiment of the present design;

FIG. 9 is a front perspective view of a third embodiment of the present design; and,

FIG. 10 is a front perspective view of a fourth embodiment of the present design.

The broken lines shown in the drawings show unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a collar wrench, as shown and described. 